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Patent Agency Ranking
公开(公告)号：US20140346905A1
公开(公告)日：2014-11-27
申请号：US14284589
申请日：2014-05-22
Applicant: DENSO CORPORATION
Inventor： Hirohito MATSUI , Koji ASAGARA , Atsuo ISHIZUKA
IPC: H02K9/19
Abstract: A rotating electric machine includes a rotor, a stator, a cooling device and a pair of cooling liquid collection tanks. The stator includes an annular stator core and a stator coil. The stator core is disposed radially outside the rotor so as to surround the rotor. The stator coil is mounted on the stator core so that a pair of coil ends of the stator coil protrude axially outward respectively from opposite axial end faces of the stator core. The cooling device is configured to supply cooling liquid to vertically upper parts of the coil ends of the stator coil. Each of the cooling liquid collection tanks is arranged to surround a vertically lower part of a corresponding one of the coil ends so as to collect and temporarily reserve therein the cooling liquid moved from the upper part to the lower part of the corresponding coil end.
Abstract translation: 旋转电机包括转子，定子，冷却装置和一对冷却液收集罐。 定子包括环形定子芯和定子线圈。 定子芯径向设置在转子周围，以包围转子。 定子线圈安装在定子铁芯上，使得定子线圈的一对线圈端分别从定子铁心的相对的轴向端面轴向向外突出。 该冷却装置构成为向定子线圈的线圈端部的垂直上方供给冷却液。 每个冷却液收集箱被布置成围绕相应的一个线圈端的垂直下部，以便收集并临时储存从相应的线圈端的上部移动到下部的冷却液。
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公开(公告)号：US20210028089A1
公开(公告)日：2021-01-28
申请号：US17066589
申请日：2020-10-09
Applicant: DENSO CORPORATION
Inventor： Xiaolin GUO , Koji ASAGARA , Kazuya TAKEUCHI , Akihiro OHI
Abstract: A heat exchanger body that includes a circulation path through which a coolant is circulated and performs heat exchange between the coolant flowing through the circulation path and an electronic component; a circulation pump that supplies the coolant to the heat exchanger body; an accumulation determination unit that determines whether a foreign matter accumulation condition is fulfilled that is satisfied when foreign matter is expected to be accumulated in at least a part of the circulation path; and a process execution unit that in response to the foreign matter accumulation condition being satisfied, executes a foreign matter cleaning process of removing the foreign matter accumulated in the circulation path and cleaning the circulation path. In the foreign matter cleaning process, the process execution unit reduces an amount of coolant supplied from the circulation pump so that the coolant has a superheating degree in a nucleate boiling region.
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公开(公告)号：US20200170144A1
公开(公告)日：2020-05-28
申请号：US16689879
申请日：2019-11-20
Applicant: DENSO CORPORATION
Inventor： Xiaolin GUO , Koji ASAGARA , Kazuya TAKEUCHI
Abstract: In an electronic component cooling device, a cooler cools an electronic component, a coolant temperature acquisition unit acquires a temperature of a coolant, a coolant flow rate acquisition unit acquires the flow rate of the coolant, a heat loss estimation unit estimates a heat loss from the electronic component, and a loss threshold calculation unit calculates an upper limit threshold of the heat loss from the electronic component based on the coolant temperature and the coolant flow rate. A coolant flow rate control unit controls the flow rate of the coolant and is configured to, in response to an estimated heat loss which is the heat loss from the electronic component that has been estimated by the heat loss estimation unit exceeding the upper limit threshold, increase the flow rate of the coolant circulating through the cooler.
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公开(公告)号：US20170288506A1
公开(公告)日：2017-10-05
申请号：US15478693
申请日：2017-04-04
Applicant: DENSO CORPORATION
Inventor： Koji ASAGARA , Takeo MAEKAWA , Takashi SATOU , Tomoyuki SHINKAI
CPC classification number: H02K9/19 , H02K7/116 , H02K2205/12
Abstract: A rotating electric machine includes a rotating shaft, a rotor fixed on the rotating shaft, a stator, a housing, a liquid coolant and a flow direction regulating member. The stator is arranged so that a radially inner peripheral surface of the stator radially faces a radially outer peripheral surface of the rotor through an annular gap formed therebetween. The housing covers both axial ends of the stator and rotatably supports the rotating shaft. The liquid coolant is provided in an internal space formed in the housing to flow into at least part of the annular gap formed between the radially inner peripheral surface of the stator and the radially outer peripheral surface of the rotor. The flow direction regulating member axially faces an axial end face of the rotor through an axial gap formed therebetween and regulates the flow direction of the coolant by means of the axial gap.
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公开(公告)号：US20160276904A1
公开(公告)日：2016-09-22
申请号：US15071732
申请日：2016-03-16
Applicant: DENSO CORPORATION
Inventor： Takafumi MATSUMOTO , Hirohito MATSUI , Koji ASAGARA , Takeo MAEKAWA , Keiji KONDOU
Abstract: In a multi-gap rotating electric machine, a side stator coil is received in a side space formed in a housing to connect radially inner and radially outer stator coils across a rotor. A cooling oil flow adjustment member is provided to adjust flow of cooling oil in the side space. The adjustment member has cooling oil guide channels formed on an uneven surface thereof facing the side stator coil. When viewed along a central axis of a rotating shaft: on an upper apart of the uneven surface which is located above the central axis, the cooling oil guide channels spread from a reference line to both sides of the reference line while extending downward; and on a lower part of the uneven surface which is located below the central axis, the cooling oil guide channels converge on the reference line from both sides of the reference line while extending downward.
Abstract translation: 在多间隙旋转电机中，侧定子线圈被容纳在形成在壳体中的侧空间中，以将径向内部和径向外部定子线圈跨过转子。 提供冷却油流调节构件以调节侧空间中的冷却油的流动。 调节构件具有形成在其面向侧定子线圈的不平坦表面上的冷却油引导通道。 当沿着旋转轴的中心轴线观察时：在位于中心轴线上方的不平坦表面的上部分布处，冷却油引导通道从参考线扩展到参考线的两侧同时向下延伸; 并且在位于中心轴线下方的不平坦表面的下部，冷却油引导通道在向下延伸的同时从基准线的两侧汇聚在基准线上。
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